Question

1. Lập PTHH cho chuỗi phản ứng sau:

a. Al₂O₃ \(\underrightarrow{\left(1\right)}\) Al \(\underrightarrow{\left(2\right)}\) AlCl₃ \(\underrightarrow{\left(3\right)}\) NaCl \(\underrightarrow{\left(4\right)}\) NaOH

b. CuSO₄ \(\underrightarrow{\left(1\right)}\) Cu(OH)₂ \(\underrightarrow{\left(2\right)}\) CuO \(\underrightarrow{\left(3\right)}\) Cu \(\underrightarrow{\left(4\right)}\) CuCl₂

@Cheewin , @Shinochi Kudou , @Einstein

Answer 1

b;

CuSO₄ + 2NaOH -> Cu(OH)₂ + Na₂SO₄

Cu(OH)₂ -> CuO + H₂O

CuO + CO -> Cu + CO₂

Cu + 2FeCl₃ -> 2FeCl₂ + CuCl₂

Answer 2

a)

2Al₂O₃ \(\underrightarrow{đp}\) 4Al + 3O₂

2Al + 3Cl₂ \(\rightarrow\) 2AlCl₃

AlCl₃ + 3NaOH \(\rightarrow\) Al(OH)₃ + 3NaCl

2NaCl + 2H₂O \(\rightarrow\) 2NaOH + Cl₂ + H₂

Answer 3

a;

2Al₂O₃ \(\xrightarrow[criolit]{đpnc}\)4Al + 3O₂

2Al + 6HCl -> 2AlCl₃ + 3H₂

AlCl₃ + 3NaOH -> Al(OH)₃ + 3NaCl

2NaCl + 2H₂O \(\underrightarrow{đpdd}\) 2NaOH + H₂ + Cl₂